7th Grade Math The Percent Equation in a PowerPoint Presentation This slideshow lesson is very animated with a flow-through technique. I developed the lesson for my 7th grade class, Pre-Pre-Algebra, but it can also be used for upper level class reviews. This lesson teaches how to use the percent equation to find parts, wholes, and percents, and solve real-life problems using proportions to find out the size of a toothpick Golden Gate Bridge. This lesson has SKELETON NOTES, notes that have the